engleski

Measurements and analysis of air tightness and indoor air quality in non-residential buildings

Good indoor air quality is crucial factor for achieving healthy and comfortable indoor climate. This issue is critical for public non- residential buildings such are nurseries, hospitals, and schools to avoid phenomena called sick building syndrome. When improving energy efficiency through maintenance and refurbishment, it is recommended to combine thermal insulation of building envelope with the air-tightening of the envelope. Reason for this is an influence of airtightness on energy efficiency, thermal comfort, indoor air quality and moisture condensation. Research presented in this paper is investigating correlation between building’s airtightness and levels of CO2, relative humidity, and temperature as basic parameters for determining indoor thermal comfort. Presented results were obtained by measuring all above stated parameters in classrooms at schools and faculties. All observed buildings are different regarding their age and building technology. During measurements meteorological parameters where also observed as well as the number of occupants in classrooms and the size of classroom itself.

indoor air quality, energy efficiency, building airtightness, maintenance, building technology

This paper was fully supported by Croatian Ministry of Science and Education under scientific research project titled “Development of predictive model for energy efficiency of buildings related to airtightness”, 2016 – 2017.